DATA STORAGE SYSTEM COMPRISING A MAPPING BRIDGE FOR ALIGNING HOST BLOCK SIZE WITH PHYSICAL BLOCK SIZE OF A DATA STORAGE DEVICE

摘要

A data storage system is disclosed comprising a non-volatile memory and a first interface operable to receive a write command from a host, the write command comprising a host write data block having a host logical block size. A block mapping bridge divides the host write data block into a plurality of transfer data blocks, wherein each transfer data block having a device logical block size smaller than the host logical block size. The transfer data blocks are transmitted through a second interface to control circuitry that accumulates the transfer data blocks into a physical data block having a device physical block size equal to a first integer multiple of the device logical block size, wherein the host logical block size is a second integer multiple of the device physical block size. The physical data block is then written to the non-volatile memory.